Jim Campbell's Large Warehouse of Puerto Rico Knowledge (via Mikko Saari):

After playing Andreas Seyfarth’s Puerto Rico (hereafter called PR) for the first time, it quickly became one of my favorites. One of the only weaknesses in the game’s design (and it’s a flaw common to many multiplayer games) is that the outcome is sometimes decided by the mistakes of the weakest player. Veteran players often complained about this, but I didn’t see much effort being made to share knowledge about strategy. Most of the strategy advice available in English is comprised of comments made after just a few games. It is also clear to me that most of this information comes from people who have played PR against a small variety of relatively weak opponents.